Guide former



Sept. 2 1924. 4 1,507,535

R. M. WASON GUIDE FORMER Filed Sent. 18, 192?.

lNVE NTOR ROBERT M- WASON ATTORNEYS/ Patented Sept. 2, 1924.

UNITED STATES "Bonner M. wnson, or sourri earnen, ilrnssncnns irrs, ASSIGNOR T OPTICAL oor/rrany, or sourrnaarncn, mnssaoriusgnrrs, A voL-u vrnny ssocra rron or MASSACHU$ETTS .curnn FORMER.

Application file sweate .8 92a -srial re sateen Tp aZZ ro/tom it mag/ concern: shown in the accompanying drawings, in .B t n i th l, OBER M- were & ifili V a citizen of the United States, residing at igul e Iisasideelevation ogta' lenscut- 55 Southbridge, in the countyof W orcester'and ting'machine illustrating my improved far-- 5 State of Massachusetts, have invented cer- -rner applied thereon.

tain new and useful Improvements Guide igpre is a transverse sectional view ar e s, o ic he fo ng i a pecitaken, 1. .1. atbel n llfil 91 fi '1; I

ficati F urelll a p1an i -t i 60 T i invention el tes ton w and u e F re V ida aamae"a ainsimp o eme in gu e o fQ P Q SiQr Ie 1'at esrthe esulfs v d ta ned. rm-ith' adi s' cuttin e gingmac e andmer Pa me e i rn ersend ticula-rly to movable formers adaptedtogbe j-EigureV is tragmentary plan view of a jus d f r g uging esi e and sh pe of a rise? ed iagimaeh' eil' ti g my .iiir lenses or other objects to be cut or edged. filiove d former applied thereto i i The well known way in whichthe sizean fi fiflqpg ppapyihg d1;awings in which shape of ophthalmic Jensesare gauged when l havc 'illustrated my invention 1 indicates cutting or. edging the same is usuallyby the baseofalens cutting machine haviiig a employing a number of formers o fie-en su t ng-arm? rr de wi ta k 3 sizes and shapes, the formers to be interg tl lle upp readthere f;ls i b k a i g changed according to the desired size or an.openingtherethru.in which the slevefAis shape to be out or edged. This necessarily -mounted. S lidabl 1 'f consumes considerable time in changing .roghdhaving-a iingerpiecefi at the upperendthese formers and also requires the keeping fin grippingmould ,7 ,at lower "end of a number of these formers on hand so which is adapted to be forced downwardly that one may be readily able to interchange onto the lens 8 to retain the same in position one former for the otherwhen cutting or upon the usual PP I iIIg table 9. edging different size lenses. It is, therefore, The cutting diamond 10 is supported by a the main object of my invention toprovide a movable bra ket 11 which carries a 'U-shaped single former or shaper which can be quickly supporting member 12, said supporting 30 and readily adjusted on the machine wheremember having guide portions in-each end by to guide the cutter so that any number of whereby to receive the guide block 18. This sizes and shapes may be readily out without guide block 13 is adjustable between the ends changing the former with the exception of of the supporting member 12 by means of a 5 adjusting the same to various degrees with screw member 14 which is threaded thru the regard to the guide. intermediate portion of the member 12 and Another object of my invention is the proconnected with one face of the guide vision of a former which is adapted to be apblock 13.

plied to either a lens cutting or lens edging The former 15 is pivoted to the lower end machine and so arranged whereby the same of the-sleeve 4 as at 16 and connected to the may be readily adjusted to different angles former is a rodv17 the upper end of which so as to guide the cutter or edging machine is secured to the inner end of a hand lever in cutting the proper shape and size of lens 18. This hand lever 18 is pivotally mounted and having the machine to which the former upon the sleeve 4 as at 19 and moves over is applied provided with the proper graduaan arcuate plate 20 provided with suitable tions whereby the adjustments may be readgraduations whereby to indicate the amount ily recorded and the former adjusted to the of adjustment imparted to the former 15. proper degree of angles. Attention is called to Figure I wherein Vith the above and other objects in view the edge of the former 15 contacts with the the lnvention consists in the novel features guide block 13 and it will be noted that the of construction, the combination and arblock 13 is yieldably retained into engagerangement of parts hereinafter more fully ment with the former by means of a coil set forth, pointed out in the claims and spring 21, one end of which is connectedto any portion of the bracket 11 while the other end is connected to a stationary support 22. The angular adjustment of the :t'ormer 15 readily guides the block 13 which in turn guides the cutter over the surface of thelens 8 so that the desired size and shape can be readily cut from the main lens blank.

From the diagram inFigure IV it will be noted that when the former 15 is disposed in a substantially horizontal position a large substantially circular lens is out while thru the movement of the former toward a-vertical position or to an oblique position the size 01 the lens is reduced while the shape is made oval, the dicated thru plate 20.

In Figure V, I have illustrated my invention as applied to an edging machine which includes the body member 23 having the supporting arms 24 extending outwardly therefrom for carrying the lens supports 25, said supports being arranged in opposed relation and adapted to clamp the lens26 in position for engagement with the usual grinding stone. Attached centrally to one of the supporting members is the former 27 which contacts with the former block-28 whereby the proper amount of material will be removed from the edge of the lens 26.

Mounted upon one of the arms 24: is a supporting member 29 having attached thereto the connecting member 30 which is connected to the r'ormer 27. The support is attached to one end of a lever 31 pivoted upon the body 23 or arm 2& and

sizes being regulated and inthe graduations upon the,

provided with a handle 32 whereby thru the manipulation of the handle 32 the former 27' may be readily adjusted to various positions as indlcated by the dotted lines so that various sized lenses may be edged without changing the type of former used as is the well known custom. by graduation portion 33 the supporting member 29 will be manipulated to adjust the former 27, the graduations 33 setting forth the various positions required of the "former. In this term of the invention the former is substantially the same as in the form illustrated in Figure I, but the application and mounting of the former slightly difiers although the principle and objects of the device are substantially the same.

WVhat I claim is- 1. A former of the character described, comprising a disc, a link connected thereto, a lever pivoted to the link whereby upon adjustment of the lever the disc will be tilted, and means to maintain thevlever in the desired adjustment. I

2. A lens cutter of the class described, including a cutter member, a disc associate with the cutter, member in contact with the disc, a link con nected to the disc, means connected to the link whereby the disc may be tilted thus causing the cutter to follow a circular or elliptical path, depending on the adjustment of the disc, and means to hold the discin the desired adjustment.

ROBERT M. VASONL It will be apparent that means to hold the cutter adjusting the hand lever 32 over the 

